Be nice to be shooting flowers outdoors, good photos! If you want them to have a chance to linger, drape them with an old sheet that reaches the ground overnight. Often works.
Thanks. If we have an early frost like early October my wife will sometimes do that to try and save some favorites. This time of year we're ready to say goodbye. Roses and some mums are all that's still hanging on. There does seem to be some lesson to learn though from their never say die behavior.